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dybincka [34]
3 years ago
6

Determine whether each statement is true or false. if true, explain your reasoning . If false provide a counter example.

Mathematics
1 answer:
Goshia [24]3 years ago
3 0

Answer:

1. False

2. False

3. True

Step-by-step explanation:

1. The diagonals of a rectangle always form four congruent triangles, which is a false statement.

The counter-statement will be, the diagonals of a square always form four congruent triangles.

2. A quadrilateral has perpendicular diagonals. Is this enough to determine what type of quadrilateral it is?

The answer is no.

The counter-statement will be, a quadrilateral has perpendicular diagonals, then it may be a rhombus or a square.

3. Explain why drawing a diagonal on any parallelogram will always result in two congruent triangles and it is true that the two triangles will be congruent as the opposite sides of the parallelogram are equal and there is a common side which is the diagonal itself.

Therefore, using SSS criteria the triangles are congruent. (Answer)

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The difference between 48 and 13 algebra numeral expression.
Sphinxa [80]

Numerical expressions contain numbers, while algebraic expressions contain variables and numbers.

<u>Numerical Expression</u>

"Difference" indicates that we'll be subtracting 13 from 48.

48 - 13 = 35

<u>Algebraic Expression</u>

Variables represent the unknown number, in this case the difference between 48 and 13. Let d represent the difference between the two.

48 - 13 = d

35 = d

6 0
3 years ago
If a frozen yogurt has 75 calories in 2 oz, how many are in 8 oz of yogurt?
irina [24]

Answer:

The answer would be 300 calories

Step-by-step explanation:

To find the amount of calories in 8 ounces we need to make the ounce amount the same. Let x equal the number of calories.

75/2=x

To get to 8 ounces we need to multiply the bottom by 4. and what we do to the bottom we do to the top.

75*4/2*4=x

multiply

300/8=x

There are 300 calories in 8 ounces.

4 0
3 years ago
All you need is in the photo please answer fast
Solnce55 [7]

system of inequalitities is

\begin{gathered} 30m+45f\le60\times30 \\ 30m+45f\le1800 \end{gathered}

thats the first equation, then

0\le f\le20

and

m\ge0

answer is the second one

8 0
1 year ago
Justin was looking for a birthday card for his sister. There were 9 funny cards, 7 serious cards, and 5 musical cards. How many
madam [21]
Just add.  7 + 9 + 5 = 21  So the answer is A.21
5 0
3 years ago
Read 2 more answers
Explain why x squared = 16 has two solutions. What are the solutions.
BabaBlast [244]
A negative number * another negative number gives a positive value

A positive number * another positive number also gives a positive value

The solutions are -4, 4


Hope this helps :)
3 0
2 years ago
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